No G2 doesn't have Service Mode .. and 4636 method works with G2 but its temporary only.. it will reset to WCDMA on restart.. Its actually a good thing to check if thats a D802
[MENTION=25535]frazgta[/MENTION].. just type *#*4636*#*# on G2 and select LTE and check if 4G works if not that thats a refurb phone and it surely will not work with 4G in Pakistan